Improved brake-block and shoe for railroad oars



B. P. LAMASON 8v S. W. MURRAY.

BRAKE BLOCK AND SHOE FOR RAILROAD CARS.

No. 69,226. Patented Sept. 24, 1867.

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BENJAMIN P. LAMASON 'AND SAMUEL W. MURRAY, OF MILTON, PENN- SYLVANIA.

Letters Patent No. 69,226, dated September 24, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that we, BENJAMIN P. LAMASON and SAMUEL W. Moment, ofMilton, in the county of Northumbcrland, and State of Pennsylvania, haveinvented a new and useful improvement on Brake-Blocks and Shoes forRailroad Cars; and we do hereby declare that the following is a full,clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, and the letters ofreference marked thereon, making a part of this specification, in which-Figure 1, in plans Aand C, are side elevations, showing the block andshoe adjusted ready for use.

kg Figure 2 are longitudinal sections, showing the mode of adjusting andsecuring shoe to block.

Figure 3 are front views of brake-blocks, showing their construction.

Figure 4 are back views of brake-shoe, showing T-lug and hook.

Figure 5, sectional view through a a.

Figure 6, sectional views through b b and it (I.

Figure 7, sectional view through c c.

To enable others skilled in the art to make and use our invention, wewill proceed to describe its construction and operation.

Description of Plan A. y

We construct our brake-block and shoe of cast iron, of the desired formand size. The shoe E, fig.'4, is provided with a T-shaped lug, seen atA. The body of this lug A is round in form, and is placed near the topend of shoe. The flanges o o, seen in figs. 4 and 5, extend across theshoe, and are less in width than the diameter of the body of lug. Thelower end of shoe E is provided with a grooved hook, seen in figs. 4 and7. e hook, J groove. Our brake-block we construct wi h an opening nearthe top, seen at B, fig. 3. This opening is made i to conform in sizeand shape to the lug A. The lower end of block D is so constructed as topass back of the hook c. This end of block is also provided with a hole,seen at I, fig. 6, which conforms in size with the groove J in book e.

The mode of operating the block and shoe is as follows, beingconstructed as above described: The block I) is secured to the woodenbeam F by means of the bolt is. The shoe E is held by the hands at rightangles with the block D; being thus in position, the lug A is passedthrough the opening B in block D, and is forced back sufficient to allowthe flanges o 0 on lug A. to pass' back of the shoulders h h on block D,as seen in fig. 5. When thus in place the shoe E is turned around intoposition parallel with the block D. This movement of the shoe. bringsthe flanges 0 0 in the position shown in fig. 5. This device forms asecure fastening at this point. The body of the lug A being round fitsneatly in the round portion of the opening 13, thus preventing anyupward'or downward movement. The shoe E thus adjusted, the lower endpassing within the hook e, the hole I and groove J are also brought inposition; the pin f is then passed through them, securing them at thispoint. On block and shoe being constructed and secured as herein stated,it will be very readily seen that it forms a simple and securearrangement, and fully meets the object in view. The brake-block andshoe adjusted ready for use is represented in fig. 1., Fig. 2 representsa longitudinal section, showing the manner of securing, 820.

Plan C is a modification of the above. The form of the lug issubstantially the same, but in it the shoe is not turned but drops downdirectly in place and is held by the jointed pin K. The fastening at thebottom is effected by inserting the projection e in the hole i, arrangedfor the purpose in the lower part of the brake-block.

The advantagcs we claim for our improved brake-block and shoe, whenconstructed as herein described, are its simplicity, and the ease andfacility with which it is adjusted. When desired, the shoe can beremoved from the block and replaced in a very short time.

What We claim as new, and desire to secure by Letters Patent, is- I 1.The brake-shoe E, provided with circular lug A, with flanges 0 o, incombination with the-shoe D, with its opening B, of constructioncorresponding to the lug, the shoe and block being arranged to turn, andto be held in place by pin f, as and for the purpose set forth. I

2. The lug A with its flanges o 0, in combination with the block l) andpin K, all constructed and operating as described and for the purposeset forth.

BENJ. P. LAMASON, 1 s. w. MURRAY.

Witnesses:

C. G. MCCORMICK, R. M. Lone-noun.

